Malicious PDF — malware analysis report

Static analysis result for SHA-256 0169f860322bbe35…

MALICIOUS

PDF

35.4 KB Created: 2021-06-19 13:29:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: cfdc55734cb49bdc90f6eca8c83495b1 SHA-1: 909a05cb231be80139234a1981a4bf82c71e3f6f SHA-256: 0169f860322bbe35ffd847811e5dfdf62e80ef9403ee36ae15460437d1177116
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free Robux'. The document body and heuristics indicate a lure to download or access potentially harmful content. The embedded URLs suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/how-to-get-free-robux-easy-1-munuit-game-hack In PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/robux-hack-download-games_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/cmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-rocitizens-money-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/tiktok-free-net_GM835599320.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-hack-999999-robux-2021-pc_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/bad-business-roblox-hack_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-spins-coin-master-october-17-2021_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-level-7-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/get-free-robux-only-today_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-speed-hack-with-bitslicer-on-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/play-roblox-free-online_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000331b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x331B 22056 bytes
SHA-256: 0bd087abb3bee3acf519ed71f0f7c87c17a23b69ff72d1394cc2c9aed6cc6a51
font_01_sfnt_off0000639e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639E 19588 bytes
SHA-256: 6e6fb1d7bd67e7671fe83cda5e43c0de2d744852803b1fea5399ebb1c9e29414

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